142077377 has 4 divisors (see below), whose sum is σ = 153006420. Its totient is φ = 131148336.

The previous prime is 142077361. The next prime is 142077379. The reversal of 142077377 is 773770241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773770241 = 8819 ⋅87739.

It can be written as a sum of positive squares in 2 ways, for example, as 34000561 + 108076816 = 5831^2 + 10396^2 .

It is a cyclic number.

It is not a de Polignac number, because 142077377 - 2⁴ = 142077361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142077377.

It is not an unprimeable number, because it can be changed into a prime (142077379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464502 + ... + 5464527.

It is an arithmetic number, because the mean of its divisors is an integer number (38251605).

Almost surely, 2^142077377 is an apocalyptic number.

It is an amenable number.

142077377 is a deficient number, since it is larger than the sum of its proper divisors (10929043).

142077377 is a wasteful number, since it uses less digits than its factorization.

142077377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929042.

The product of its (nonzero) digits is 57624, while the sum is 38.

The square root of 142077377 is about 11919.6215124474. The cubic root of 142077377 is about 521.8050888793.

The spelling of 142077377 in words is "one hundred forty-two million, seventy-seven thousand, three hundred seventy-seven".